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  <title>Frees all resources for the specified statement</title>

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</div><hr /><div id="function.sqlsrv-free-stmt" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">sqlsrv_free_stmt</h1>
  <p class="verinfo">(No version information available, might only be in Git)</p><p class="refpurpose"><span class="refname">sqlsrv_free_stmt</span> &mdash; <span class="dc-title">Frees all resources for the specified statement</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.sqlsrv-free-stmt-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>sqlsrv_free_stmt</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$stmt</code></span>
   )</div>

  <p class="para rdfs-comment">
   Frees all resources for the specified statement. The statement cannot be used 
   after <span class="function"><strong>sqlsrv_free_stmt()</strong></span> has been called on it. If 
   <span class="function"><strong>sqlsrv_free_stmt()</strong></span> is called on an in-progress statement 
   that alters server state, statement execution is terminated and the statement 
   is rolled back.
  </p>
 </div>

 
 <div class="refsect1 parameters" id="refsect1-function.sqlsrv-free-stmt-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">stmt</code></em></dt>

     <dd>

      <p class="para">
       The statment for which resources are freed. 
       Note that <strong><code>NULL</code></strong> is a valid parameter value. This allows the function to be 
       called multiple times in a script. 
      </p>
     </dd>

    
   </dl>

  </p>
 </div>

 
 <div class="refsect1 returnvalues" id="refsect1-function.sqlsrv-free-stmt-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
  </p>
 </div>

 
 <div class="refsect1 examples" id="refsect1-function.sqlsrv-free-stmt-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-2116">
    <p><strong>Example #1 <span class="function"><strong>sqlsrv_free_stmt()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$serverName&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #DD0000">"serverName\sqlexpress"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$connectionInfo&nbsp;</span><span style="color: #007700">=&nbsp;array(&nbsp;</span><span style="color: #DD0000">"Database"</span><span style="color: #007700">=&gt;</span><span style="color: #DD0000">"dbName"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"UID"</span><span style="color: #007700">=&gt;</span><span style="color: #DD0000">"username"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"PWD"</span><span style="color: #007700">=&gt;</span><span style="color: #DD0000">"password"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$conn&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">sqlsrv_connect</span><span style="color: #007700">(&nbsp;</span><span style="color: #0000BB">$serverName</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$connectionInfo</span><span style="color: #007700">);<br />if(&nbsp;</span><span style="color: #0000BB">$conn&nbsp;</span><span style="color: #007700">===&nbsp;</span><span style="color: #0000BB">false&nbsp;</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;die(&nbsp;</span><span style="color: #0000BB">print_r</span><span style="color: #007700">(&nbsp;</span><span style="color: #0000BB">sqlsrv_errors</span><span style="color: #007700">(),&nbsp;</span><span style="color: #0000BB">true</span><span style="color: #007700">));<br />}<br /><br /></span><span style="color: #0000BB">$stmt&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">sqlsrv_query</span><span style="color: #007700">(&nbsp;</span><span style="color: #0000BB">$conn</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"SELECT&nbsp;*&nbsp;FROM&nbsp;Table_1"</span><span style="color: #007700">);<br />if(&nbsp;</span><span style="color: #0000BB">$stmt&nbsp;</span><span style="color: #007700">===&nbsp;</span><span style="color: #0000BB">false&nbsp;</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;die(&nbsp;</span><span style="color: #0000BB">print_r</span><span style="color: #007700">(&nbsp;</span><span style="color: #0000BB">sqlsrv_errors</span><span style="color: #007700">(),&nbsp;</span><span style="color: #0000BB">true</span><span style="color: #007700">));<br />}<br /><br /></span><span style="color: #FF8000">/*-------------------------------<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Process&nbsp;query&nbsp;results&nbsp;here.<br />-------------------------------*/<br /><br />/*&nbsp;Free&nbsp;the&nbsp;statement&nbsp;resources.&nbsp;*/<br /></span><span style="color: #0000BB">sqlsrv_free_stmt</span><span style="color: #007700">(&nbsp;</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
 </div>

 
  <div class="refsect1 notes" id="refsect1-function.sqlsrv-free-stmt-notes">
  <h3 class="title">注释</h3>
  <p class="para">
   The main difference between <span class="function"><strong>sqlsrv_free_stmt()</strong></span> and 
   <span class="function"><a href="function.sqlsrv-cancel.html" class="function">sqlsrv_cancel()</a></span> is that a statement resource cancelled with 
   <span class="function"><a href="function.sqlsrv-cancel.html" class="function">sqlsrv_cancel()</a></span> can be re-executed if it was created with 
   <span class="function"><a href="function.sqlsrv-prepare.html" class="function">sqlsrv_prepare()</a></span>. A statement resource cancelled with 
   <span class="function"><strong>sqlsrv_free_statement()</strong></span> cannot be re-executed.
  </p>
 </div>

 <div class="refsect1 seealso" id="refsect1-function.sqlsrv-free-stmt-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.sqlsrv-cancel.html" class="function" rel="rdfs-seeAlso">sqlsrv_cancel()</a> - Cancels a statement</span></li>
   </ul>
  </p>
 </div>

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